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<article xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:ali="http://www.niso.org/schemas/ali/1.0/" article-type="research-article" dtd-version="1.2" xml:lang="en"><front><journal-meta><journal-id journal-id-type="publisher-id">Structural Mechanics of Engineering Constructions and Buildings</journal-id><journal-title-group><journal-title xml:lang="en">Structural Mechanics of Engineering Constructions and Buildings</journal-title><trans-title-group xml:lang="ru"><trans-title>Строительная механика инженерных конструкций и сооружений</trans-title></trans-title-group></journal-title-group><issn publication-format="print">1815-5235</issn><issn publication-format="electronic">2587-8700</issn><publisher><publisher-name xml:lang="en">Peoples’ Friendship University of Russia named after Patrice Lumumba (RUDN University)</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">24468</article-id><article-id pub-id-type="doi">10.22363/1815-5235-2020-16-4-261-270</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>Numerical methods of structures’  analysis</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>Численные методы расчета конструкций</subject></subj-group><subj-group subj-group-type="article-type"><subject>Research Article</subject></subj-group></article-categories><title-group><article-title xml:lang="en">Choice of mathematic models of soils in static and seismic analyses of embankment dams</article-title><trans-title-group xml:lang="ru"><trans-title>Выбор математических моделей грунтов в статических и сейсмических расчетах грунтовых плотин</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><contrib-id contrib-id-type="spin">3096-6362</contrib-id><name-alternatives><name xml:lang="en"><surname>Lyapichev</surname><given-names>Yury P.</given-names></name><name xml:lang="ru"><surname>Ляпичев</surname><given-names>Юрий Петрович</given-names></name></name-alternatives><bio xml:lang="en"><p>expert for foreign projects of JSC “Hydroproject Institute”, member of the International Commission on Large Dams (ICOLD), Doctor of Technical Sciences, Professor</p></bio><bio xml:lang="ru"><p>эксперт АО «Институт “Гидропроект”» по зарубежным проектам, член Комитета СИГБ по компьютерным аспектам расчета и проектирования плотин, доктор технических наук, профессор</p></bio><email>lyapichev@mail.ru</email><xref ref-type="aff" rid="aff1"/><xref ref-type="aff" rid="aff2"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">Hydroproject Institute (Joint Stock Company)</institution></aff><aff><institution xml:lang="ru">АО «Институт “Гидропроект”»</institution></aff></aff-alternatives><aff-alternatives id="aff2"><aff><institution xml:lang="en">International Commission on Large Dams (ICOLD)</institution></aff><aff><institution xml:lang="ru">Международная комиссия по большим плотинам (ICOLD)</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2020-12-15" publication-format="electronic"><day>15</day><month>12</month><year>2020</year></pub-date><volume>16</volume><issue>4</issue><issue-title xml:lang="en">VOL 16, NO4 (2020)</issue-title><issue-title xml:lang="ru">ТОМ 16, №4 (2020)</issue-title><fpage>261</fpage><lpage>270</lpage><history><date date-type="received" iso-8601-date="2020-08-29"><day>29</day><month>08</month><year>2020</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2020, Lyapichev Y.P.</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2020, Ляпичев Ю.П.</copyright-statement><copyright-year>2020</copyright-year><copyright-holder xml:lang="en">Lyapichev Y.P.</copyright-holder><copyright-holder xml:lang="ru">Ляпичев Ю.П.</copyright-holder><ali:free_to_read xmlns:ali="http://www.niso.org/schemas/ali/1.0/"/><license><ali:license_ref xmlns:ali="http://www.niso.org/schemas/ali/1.0/">http://creativecommons.org/licenses/by/4.0</ali:license_ref></license></permissions><self-uri xlink:href="https://journals.rudn.ru/structural-mechanics/article/view/24468">https://journals.rudn.ru/structural-mechanics/article/view/24468</self-uri><abstract xml:lang="en"><p>Relevance. Numerical analyses of behavior or stress-strain state (SSS) of embankment dams are usually performed using various computational programs, which use different, often complex mathematical models of soils. However, the right choice of these models is left to the program user, who usually has not enough experience in this field of knowledge, and therefore the results of these analyses are often obscure and erroneous. The aims of the work - development of recommendations for selecting the most reliable mathematical models of soils in numerical analyses of embankment dams and comparing these models with the most common models in modern world practice of their application. Methods. Deep comparative analysis of many soil models was conducted on the use of the soil models in numerical analyses of embankment dams during author’s work in ICOLD Committee on Analysis and Dam Design. Results. On the basis of the evaluation of the reliability of soil models, recommendations were obtained on the choice and application of these models in the numerical analyses of SSS of embankment dams under action of static and seismic impacts; interactions between the results of these analyses and dam monitoring data were identified.</p></abstract><trans-abstract xml:lang="ru"><p>Актуальность. Численные статические и сейсмические (динамические) расчеты напряженно-деформированного состояния (НДС) грунтовых плотин обычно выполняются с применением различных вычислительных программ, в которых используются разные, часто сложные математические модели грунтов. Однако правильный выбор этих моделей остается за пользователем программы, обычно не имеющим достаточного опыта, поэтому результаты расчетов часто бывают непонятными и ошибочными. Таким образом, цели настоящего исследования - разработка рекомендаций по выбору достоверных математических моделей грунтов в численных расчетах грунтовых плотин и их сравнение с наиболее распространенными моделями в современной практике применения. Методы. Глубокий сравнительный анализ многих моделей грунтов проводился по результатам их применения в расчетах грунтовых плотинах во время работы в Комитете СИГБ (ICOLD) по численным расчетам и проектированию плотин. Результаты. На основе оценки достоверности моделей грунтов получены рекомендации по выбору и применению моделей в численных расчетах НДС грунтовых плотин при статических и сейсмических воздействиях; определены взаимодействия между результатами расчетов и данными мониторинга поведения плотин.</p></trans-abstract><kwd-group xml:lang="en"><kwd>embankment dams</kwd><kwd>numerical analyses</kwd><kwd>mathematical models of soils</kwd><kwd>stress-strain state</kwd><kwd>evaluation of reliability of soil models</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>грунтовые плотины</kwd><kwd>численные расчеты</kwd><kwd>математические модели грунтов</kwd><kwd>напряженно-деформированное состояние</kwd><kwd>оценка достоверности моделей грунтов</kwd></kwd-group><funding-group/></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>ICOLD Bulletins. No. 122. Computational procedures for dams. 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